Uncomment fetchPage()

Author: wb9688

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeChannelExtractor.java

@@ -208,7 +208,7 @@ public InfoItemsPage<StreamInfoItem> getPage(String pageUrl) throws IOException,
 
         // Unfortunately, we have to fetch the page even if we are only getting next streams,
         // as they don't deliver enough information on their own (the channel name, for example).
-//        fetchPage();
+        fetchPage();
 
         StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
         JsonArray ajaxJson;